This is the documentation of version 1.0.0-rc.2. Go to the latest version, 1.0.0-rc.5.

Type Alias FeatureLabelConfig<F>

FeatureLabelConfig: LabelConfig & {
    title?:
        | ((feature: F) => string)
        | DataDrivenPropertyValueSpecification<string>;
}

A LabelConfig that also sets what the label says, for the labels a module writes beside the features it shows.

Type Parameters

F
The feature the title function receives.

Type Declaration

Optionaltitle?: ((feature: F) => string) | DataDrivenPropertyValueSpecification<string>

Text content for the label.
Remarks
The SDK calls a function once per feature when it shows it, and draws its result as given. A MapLibre expression, which the layer evaluates per feature over the properties the feature is drawn with, replaces the module's whole label text.
Example
```
// Function
title: (feature) => feature.properties.poi?.name || 'Unknown'

// MapLibre expression
title: ['get', 'title']
```
See
https://maplibre.org/maplibre-style-spec/types/#formatted